Host: Science Council of Japan
Co-host: Architectural Institute of Japan, Japan Association for Wind Engineering, The Institute of Electrical Engineering of Japan, Japanese Society of Steel Construction, Japanese Society of Civil Engineering, Meteorological Society of Japan
Pages 000074
The possibility of the application of the mass-consistent flow simulation model (MASCON model) to the evaluation of the topographical effects on the design-wind speed for the wind-resisting design is investigated. This is because a simple and efficient method is required for that purpose due to the reason that it is difficult to determine the design-wind speed, which includes the topographical effects, for the sites away from the meteorological observatories based solely on the AIJ Recommendation. Through the numerical experiments with a meso-scale meteorological model on the thermally stratified air flows over an isolated hill, it is shown that, for the strong wind, say 40m/s, horizontal distribution of the near surface wind speed becomes similar to the one with the neutral stratification. This suggests the possibility of using the MASCON model for the evaluation of the topographical deformation of the wind field. A comparison between the simulations with the MASCON model and the meso-scale model for the realistic topography is also presented.
